Elastic cushion mounting



June 25, 1935. A. G. CARTER 2,005,934

ELASTIC CUSHION MOUNTING Filed Dec. 29, 1932 l 115 INVENTOR Andrew 6.C'd/ffl BY Qh/M v M ATTORNEY Patented June 25, 1935 C I UNITED STATESPATEN OFFICE ELASTIC CUSHION MOUNTING Andrew a. Garter, amid Rapids.Mich.

Application December 29, 1932, Serial No. 649,290 4 Claims. (Cl. 248- 7)This invention relates to improvements in The bracket may be of anyheight required for elastic or cushion mountings for automobile theservice and character of mounting in which motors or similar bodies,although the invention it is used. is adapted to other uses. 4 is myimproved cushion member as an en- 5 The objects of the invention are:tirety, having incorporated as its yielding member 5 First, to providean improved cushion con- 9. rubber cushion ll. It comprises an outerstruction comprising a union of metal reinforcing metallic annularportion 5 which is provided with with vulcanized rubber cushion inwhichthe parts an outwardly pr j i flange 5 by which it is are substantiallyinseparably incorporated toconnected to the bracket 3 by means of bolts3|.

l0 gether Incidentally it frequently happens that the flange Second, toprovide an improved construction of 6 may be bolted directly to thecross member of metal reinforcing for rubber cushion mountings. t f aThird, to provide a construction of elastic 8 is t e inner reinforcingmeta ic supp in cushion mounting in which the vibration of the m m r pvid d with nwa d yproi tin fla engine or moving part is substantiallycontrolled. 9 which is Pe o ted r attachment o the e 15 Fourth, toprovide such a construction in which zine casing by can screws ud boltsare, the rubber cushion element can be so distributed, course,eve-liable this P pose. formed and disposed as to secure any degree ofThe rubber cushion center or member ll is rigidity or elasticityrequired and to locate the i lly f rmed in cross section at differentrigidity and the flexibility at desired and required Points for the dutyq This is securely points, bonded to the said reinforcing supports. Atthe Fifth, to provide a construction of cushion bottomas seen in itentirely fi s the pace mounting i which th hi is efiectively between thereinforcing rings and it carries the bonded directly to the metal forthe utilization of greater D P 0f the d at a p int and the metalreinforcing means. is subjected to compression. At the top the 25Objects pertaining to details and economies will amount of bber is verymaterially reduced as appear from the description to follow. Preferredseen in 3, to Permit or elasticlty on the embodiments of my inventionare illustrated in Y nmvement of the engine and to thus effec' theaccompanying drawing, in which; tively cushion the parts. It supports bytension 1 is an enlarged detail View in vertical in the normal position.As seen in Fig. 3, an in- 30 central section of a structure whichembodies the mediate amount of cushion 15 disposed at the cushion, theStabilizing spring and the friction sides to oifer effective resistanceto the lateral means in a single Structure required for the mostvariations. The variation of cross section of the com lete effectivenessand es eciall for heav rubber at various points allows the completeworlf. p y y variation of flexibility to meet all requirements.

Fig. 2 is a detail cross sectional view on the For light duty the f gillustrated as quarter taken on line 2-2 of Fig. 1, showing the thefront suspension m F 1S sufiiclent' By variation of cross section of thecushion at difincireiasing i secglon and addmg to the ferent points inits circumference, the cushion 8 h: :erve g lduty gg 40 being varied bythe extent of the concavity in the owever e 5 mo igq 'i emen and face orfaces of the cushion stabilized by the stabil zing spring II, as seen inFig. 3 is a detail perspective view of a modified Figs 5 and The spnng Il is made of mmet' rical halves HI encircling the cushion andbeconstruction in which segments of rubber cushion mg joined by crossbolts 2 and 3, one side are made use of in place of complete rings, theextent and cross section of the cushion segments 3. being a the zg g' iik being varied to meet requirements. e uppei en engages 1 urea e or s oe bracket [2 or any suitable means. The Parts be ldentlfied by numeralsIt will be readily understood that the elasticity of referenceof thespring II, when thus clamped to the outer l 15 an automoblle motor casmgShown rigid member 5 as carried by the frame or frame 50 v y. 2 is theframe Chassis. being bracket, supports the same so that in the eventalso show co ve oha y- 3 s a supporting of vibration of the engine ormotor from side bracket for the cushi n m un in in aperto side, it isresisted by this s ring which tends tured for the crank shaft, as seenin Fig. l, where to return the same to the center and minimize thestructure is illustrated for a front mounting. the vibration. This isespecially of advantage in 55 and quickly stabilizes and minimizes thesame.

I have shown this sprin in vertical position. It can be pointed in anydirection so long as it couples the fixed part of the cushion device tothe vibrating part or motor and will be disposed to accommodate theparts, depending on the elevation and position of the connection.

Further, where there is very heavy duty or where for any reason it isdesired to give additional resistance to the vibration, I secure to aninwardly projecting flange 82 on the member 8 annular spring disk l3carrying on its inner face an annular friction member II which is forcedinto contact with the flange I to resist the relative rotation betweenthese parts. The flange I is recessed at II to accommodate this frictionmember. I insert an insulating cushion l5 between the flange I and itssupport in this modification.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent is:

1. In an elastic cushion mounting for a motor, the combination of anouter rigid member, an inner rigid member embraced by said outer memberin spaced relation thereto, a resilient rubber cushion disposed betweensaid rigid members and bonded thereto to connect and unite the same andsupport and hold a motor and insulate from vibrations of such a motor,said cushion being proportioned so that its greatest cross section is atthe bottom portion and its smallest cross section at the top portionwith the cross section of its side portions of intermediate size,whereby the side portions being of smaller size will transmit lessvibration while, in their relation to the other portions, they willsupply suilicient resistance to a lateral vibration of a motor in themounting, and whereby the top portion being of smaller cross sectionwill transmit less vibration while, in its relation to the otherportions, it will supply sufiicient resistance to upward movement of amotor in the mounting whereby the motoris supported with suflicientrigidity and with a minimum of transmission of vibration through themounting.

2. In an elastic cushion mounting for a motor, the combination of anouter rigid member, an inner rigid member embraced by said outer memberin spaced relation thereto, a resilient cushion disposed between saidrigid members and bonded thereto to connect and unite the same andsupport and hold a motor and insulate from vibrations of such a motor,said cushion being proportioned so that its greatest cross section is atthe 2,005,984 the starting of the engine as it resists the torque bottomportion and its smallest cross section at the top portion with the crosssection of its side portions of intermediate size, whereby the sideportions being of smaller size will transmit less vibration while, intheir relation to the other portions, they will supply sufficientresistance to a lateral vibration of a motor in the mounting, andwhereby the top portion being of smaller cross section will transmitless vibration while, in its relation to the other portions, it willsupply sufficient resistance to upwardmovement of a motor in themounting whereby the motor is supported with sufiicient rigidity andwith a minimum of transmission of vibration through the mounting.

3. In an elastic cushion mounting for a motor, the combination of anouter rigid member, an inner rigid member embraced by said outer memberin spaced relation thereto, a resilient rubber cushion disposed betweensaid rigid members and bonded thereto to connect and unite the sameandsupport and hold a motor and insulate from vibrations of such amotor, said cushion being proportioned with its bottom portion oflargest size and its top portion of smallest size and with its sideportions of intermediate size, whereby the side portions being ofsmaller size will transmit less vibration while, in their relation tothe other portions, they will supply suflicient resistance to a lateralvibration of a motor in the mounting, and whereby the top portion beingof smaller size will transmit less vibration while, in its relation tothe other portions, it will supply suflicient resistance to upwardmovement of a motor in the mounting whereby the motor is supported withsufficient rigidity and with a minimum of transmission of vibrationthrough the mounting.

4. In an elastic cushion mounting for a motor, the combination of anouter rigid member, an inner rigid member embraced by said outer memberin spaced relation thereto, a resilient rubber cushion disposed betweensaid rigid members and bonded thereto to connect and unite the same andsupport and hold a motor and insulate from vibrations of such a motor,said cushion being so proportioned that its side and top portions are ofsmaller size than the bottom portion but are of suflicient size toresist motion while being small enough to transmit the minimum vibrationwhereby the motor is supported with suflicient rigidity and with aminimum of transmission of vibration through the mounting.

ANDREW G. CARTER.

